. >> these people are worried about taxes, social security, how to get out of the debt. have you old man biden laughing about it and laughing in a discussion about security and dead ambassadors, laughing about practically everything for the first half hour. i bet you a burve of young people did see an overbearing father that they think doesn't get t. i betcha. >> greta: today, the rnc chair, peeb -- reince priebus, calling the joe biden appearance, the smirk didn't work. >> that's right. >> greta: i expect the republican party not to be impressed with vice-president biden last night. smiles or no smiles. what was surprising to me was nbc's tom brokaw coming down hard on the vice-president for smirking about when we were talking about nuclear war with iran. >> i think serious people that looked at joe biden's behavior last night, they weren't impressed with t. even the people who thought that joe biden did an otherwise decent job, also threw into the conversation, look, it may have been much better if he didn't distract everyone by his own actions. look, i thought that pa